Warp Knitting Support Body Damping to Prevent Tool Collisions
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Solution Overview
Problem
Existing warp knitting machines experience collisions between knitting tools due to uncontrolled vibrations at high speeds, which passive vibration dampers fail to adequately address, and active vibration dampers are complex and unnecessary.
Innovation Solution
A passive vibration damper is strategically attached to the middle third of the supporting body's wall, with optional additional dampers placed outside the central third, forming a spring-mass system to effectively dampen vibrations and prevent tool collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If active vibration dampers are used to dampen vibrations, then vibration damping effectiveness is improved, but device complexity increases
Solution Approach 1:
The invention employs passive vibration dampers that automatically dampen vibrations without requiring external control systems, power supplies, or active intervention. These self-service dampers rely on their inherent mechanical properties (spring-mass systems, friction elements, or viscoelastic materials) to dissipate vibration energy, thereby achieving effective vibration damping while maintaining simple device structure and avoiding the complexity of active control systems.
2Object-affected harmful factors
If vibration dampers are attached to various locations on the supporting body, then vibration damping coverage is improved, but device complexity and space requirements increase
Solution Approach 1:
The invention strategically segments the supporting body into three longitudinal sections and places dampers only in the middle third and at least one outer third, avoiding placement in all regions. This segmented approach provides adequate vibration damping coverage for complex overlapping vibrations while minimizing the total space occupied by dampers and avoiding unnecessary space consumption in areas where dampers are not needed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration provides significant damping, preventing knitting tool collisions and reducing vibrations, making an active vibration damper unnecessary, while maintaining a compact design.
Implementation Method 1
a vibration damper (3), the vibration damper being a passive vibration damper which is operatively connected to a wall (6) of the supporting body (4)
Implementation Method 2
forming a spring-mass system to effectively dampen vibrations
Data Source
Figure 1~2
Figure 3~6
Figure 7~9
AI summary
The invention relates to a warp knitting machine (2) with a bar arrangement comprising several bars having knitting tools, a supporting structure having at least one support body (4) oriented substantially parallel to the bars, and a vibration damper (3). According to the invention, the vibration damper (3) is a passive vibration damper (3) which is in operative contact with a wall (6) of the support body (4), wherein the vibration damper (3) is attached to the wall (6) of the support body (4) within a central third of the support body (4) along a longitudinal direction of the support body (4).